By Meredith Dadigan Abel, IM Certified® Facilitator, K-5 Teachers are the heartbeat of any new math curriculum—they bring lessons to life, adapt to student needs, and make learning happen every day. But behind the scenes, administrators are the backbone, ensuring the...
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Building a Math Community with IM K–5 Math
Sep 11, 2025
By Tabitha Eutsler, 3rd Grade Teacher “I’m not sure this is working. Only five of my students are participating and commenting each day. The rest sit there and look at me.” This was my conversation with our math coordinator after my first few days of teaching IM K–5...
Turning the Flywheel: The Next Chapter for Illustrative Mathematics
Aug 21, 2025
By Kristin Umland, IM CEO and Cofounder Twelve years ago, Illustrative Mathematics® (IM) was just a scrappy startup with very few resources, held together by five founders who shared a conviction that we could help educators across the United States elevate their math...
A Farewell and a Look Ahead
Jul 31, 2025
By Bill McCallum, IM Cofounder Every parent knows what it feels like to bring a being into existence with the hope they will one day stand on their own. It is one of the greatest joys to watch them grow, change, and eventually spread their wings. Nothing quite...
Celebrating Bill McCallum’s Accomplishments as CEO of Illustrative Mathematics®
Jul 24, 2025
Since 2011, Illustrative Mathematics (IM)—which has reached over three million students and educators—has been guided by the vision, expertise, and heart of our CEO and cofounder, Bill McCallum. Today, we are announcing a milestone for IM: At the end of this month,...
Unlocking the ‘Our’ in Discourse
May 28, 2025
Catherine Castillo, Sr. Implementation Specialist Brea Jimenez, Sr. Specialist, Facilitator Certification and Quality Assurance What do you notice about this NCTM framework for mathematics teaching? What do you wonder? You likely noticed that four of these teaching...
Student Voice: The Signal, Not the Noise
May 15, 2025
By Anita Crowder, PhD, Senior Director of Impact Research An ideal Illustrative Mathematics (IM) classroom is one where students’ curiosity drives learning, their feedback shapes instruction, and their identities are embedded in every mathematical task. Student voice...
From Struggle to Success: A Math Coach’s Insights on IM® Math
Apr 17, 2025
Jennifer Cullen, Math Instructional Coach/Interventionist, Hortonville Area School District How do you transform math instruction to reach every student—from those who struggle to those who soar? We recently sat down with Jennifer Cullen, an experienced instructional...
Teach and Learn Together: A Professional Learning Community in Action
Feb 25, 2025
Deepa Bharath, District Instructional Lead Teacher, Mathematics at Cambridge Public Schools Sarah Caban, Interim Director, K–5 Teacher Learning at Illustrative Mathematics “Illustrative Mathematics is a problem-based curriculum that fosters the development of...
Using the IMplementation Reflection Tool: Classroom Implementation (Part 3 of 3)
Jan 30, 2025
Catherine Castillo, Sr. Implementation Specialist Claire Neely, Sr. Implementation Specialist "...[I]nstructional capacity for producing meaningful student learning is a function of the interactions among teachers’ pedagogical and content knowledge; the use of...
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